Safety Becomes a Concern With High-Caffeine Drinks. Among the latest entrants in the energy industry’s caffeine race is a pocket-size squeeze bottle called Mio Energy.
Each half-teaspoon serving of Mio, which is sold by Kraft Foods, releases 60 milligrams of caffeine in a beverage, the amount in a six-ounce cup of coffee, the company says. But one size of the bottle, which users can repeatedly squeeze, contains 18 servings, or 1,060 milligrams, of caffeine — more than enough, health specialists say, to sicken children and some adults, and even send some of them to the hospital.
Several countries are reining in sales of energy drinks, pointing to the risks of excessive caffeine consumption by teenagers and even some adults. By year’s end, Canada will cap caffeine levels in products like Monster Energy, Red Bull and Rockstar. Also countries like Mexico, France and India have or are considering steps including taxing the drinks more heavily to discourage their use.
As consumption of energy drinks soars in the United States, some members of Congress have called for a review of the industry, and the New York State attorney general is investigating the practices of several producers. However, critics say the Food and Drug Administration has allowed the drinks to languish in a regulatory gray area and does not require companies to disclose how much caffeine their products contain.
“Their approach has been laissez-faire,” said Dr. Bruce A. Goldberger, a toxicologist at the University of Florida in Gainesville, who has been an industry critic. “The question is, what is it going to take to cause them to take action?”
F.D.A. officials say they lack sufficient evidence to act on caffeine levels in energy drinks, but continue to study the issue. Also, producers can market an energy drink as either a beverage or a dietary supplement, differing regulatory categories with different labeling and ingredient rules.
“We don’t have energy drinks defined by any regulation,” said Daniel Fabricant, the director of the F.D.A.’s dietary supplement division. “It is a marketing term.”
Agency officials, however, may soon face more pressure to regulate the products after the disclosure Monday that the agency had received reports of five deaths since 2009 that could be linked to Monster Energy, a top-seller. The drink’s manufacturer, Monster Beverage, disputed any suggestion that its products are unsafe.
The fatalities are also raising broader questions about whether companies monitor reports of deaths and serious injuries that may be tied to their products. A spokeswoman for Monster Beverage said Monday that the company was unaware of four of the five deaths reported to the F.D.A., even though such incident reports were part of an agency database.
The mother of a 14-year-old Maryland girl who died last December from a heart arrhythmia after drinking two large cans of Monster Energy in 24 hours obtained the records by requesting them under the Freedom of Information Act. Last week, she filed a lawsuit against Monster Beverage, a publicly traded company based in Corona, Calif., seeking unspecified damages.
Under the new Canadian rules, the big, 24-ounce size of Monster Energy that the Maryland teenager, Anais Fournier, drank will be banned because it contains 240 milligrams of caffeine, 60 milligrams more than the limit set by the new standards. Companies there will also track the types of consumers using their products and compile data about any health problems linked to them.
In the United States, a report last year by the federal Substance Abuse and Mental Health Services Administration found that the annual number of emergency room visits in this country linked to energy drinks rose to over 12,000 in 2009, the latest year for which data is available. The figure represents a tenfold jump from the number of such visits reported in 2005.
The caffeine used in the beverages, which are also high in sugar, can come from a variety of sources, like synthetic caffeine, the guarana plant and tea extracts. Producers can mask the caffeine levels by including it among other ingredients as part of a drink’s “energy blend.”
The issue of how, or whether, to restrict levels of caffeine in energy drinks sold here is being raised as a seismic shift is occurring in beverage consumption. In some stores, sales of energy drinks now outpace those of sodas.
On a company Web site promoting Mio Energy, Kraft says that the black cherry flavor of the additive is “so wild it could get you arrested on a plane, but it’s worth the lawyer fees.” The bottle’s label notes on the side that it is “not for children,” a category that the beverage industry usually defines as those under 12.
Medical specialists say that healthy adults can safely consume 400 milligrams or more of caffeine daily. The drug, which acts as a stimulant, also provides benefits, like increased alertness.
Far less is known, however, about the impact of high caffeine use on teenagers, and specialists say the drug can pose dangers to those with undiagnosed health conditions like heart problems.
Roland Griffiths, a caffeine specialist at Johns Hopkins University and an industry critic, said that high caffeine use by young people can cause a cycle of rushes and crashes that can add “a degree of variance to their moods and psychological well-being that they don’t really need.”
Officials in Canada said they decided to take a uniform regulatory approach to energy drinks since they are sold alongside beverages. “If it looks like a duck and quacks like a duck, it ought to be regulated like a duck,” said Anatole Papadopoulos, an official of Health Canada, that country’s counterpart to the F.D.A.
The new Canadian rules do not affect small energy “shots” like 5-hour Energy, a top-selling brand. But the rules cap the level of caffeine in cans of energy drinks at 180 milligrams. Along with the 24-ounce can of Monster Energy, other products like the 20-ounce Red Bull, popular in the United States, would run afoul of the rules.
The Canadian action is a step back from the recommendations of a scientific panel there, which urged that, among other things, energy drinks be labeled “stimulant drug containing drinks.” Still, the move may also create a public relations conundrum for the industry.
While the Canadian Beverage Association, which represents energy drink makers like Coca-Cola and PepsiCo, has endorsed the new rules there, , a sister trade group here, the American Beverage Association, that represents many of the same companies, said through a spokeswoman it will fight caffeine caps in this country.
Wendy Crossland, the mother of the 14-year-old girl who died in Maryland, said that the F.D.A. needs to require energy drink producers to disclose how much caffeine the beverages contain.
In Canada, the death in 2008 of Brian Shepard, 15, of an irregular heartbeat after drinking a can of Red Bull, helped spur calls for regulations. His father, James Shepard, said he could not believe that nothing was being done in America.
“In the States, the amount of caffeine in some of those cans is huge, and you are drawing kids to it,” said Mr. Shepard, an automobile mechanic in Toronto. “It is disgusting.”